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One of the finest puzzle collections on the internet, including many brain teasers, puzzle problems, logic video games and more. The website also features original puzzle crime stories in which you need to solve puzzles to continue reading further.

A collection of mind-blowing Brain Teasers, quiz questions and psychometric tests, all designed to stretch your wits to the limit and beyond from this prolific author of puzzle books, IQ Tests and trivia quizzes.